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@gutter taire' datent @fitta JAMES n. LoeafN, (iF-Rotta, MISSOURI.

Letters Param No. 78,1298, dared May 26, 1868; @mama May 1s, 1868.

IMPROVEMENT IN SWING-MAGHINES...

- @la tlgrtirlr referrer tr in time ttrttrts ttent mit mating gaat nitigt ramt.

T0 ALL WHOM IT MAY CON CERN.

Be it known that I,- JAMES R. LOGAN, of Rolla,.in the county of Phelps,and State of Missouri, have invented a new and useful Improvement inSawing-lvLachines;l and that the followingr description, taken inconnection with the accompanying dra-wings, hereinafter referred to,forms'a full and exact specification of the same, wherein I have setforth the nature and principles of my said improvement, by whichmy'invention may be distinguished from all others'oi` a similar class,together with such parts as I claim, and desire to have secured toV meby Letters Patent.

lThis invention relates to certain new and useful improvements oncross-cut sawingmachines, and is more especially designed to be applied'to a machine of that kind, for which Letters Patent were `granted tome, bearingr date 19th December, 1865.

The invention consists, rst, in a novel manner of applying the wheels onwhich the machine is mounted to the axle there'oiQiwhereby said wheelsmay be adjusted in a plane parallel with thc log, to insure the readyAadjustment of the saw to the log after each cnt.

The invention consists, second, in an improved means for suspending thesaw or keeping it in an elevated state when themachine is not in use or.is being drawn from place to place.

In the accompanying sheet of drawings* Figure lis aside sectional viewof my invention, taken in the line a: 2:, iig. 2.

Figure 2, antransverse section ofthe Same, taken in the line y y, iig.1.

Figure 3, a detached view ofthe device by which the saw is heldsuspended.

Similar letters of reference indicate like parts. v

A represents the frame of the machine, and B the saw, the latter beingarranged and operated in the same way as described in the Letters Patentpreviouslygranted to me, and previously referred to, and which conse=quently do not here require a special description.

The frame A, at its rear part, is supported by two wheels C C, the armsa of which pass through pendent ears or lugs Zrattached to circularplates D D, which are secured by central pivot-bolts to the undersidesiot' circular plates E, the latter being permanently secured to theaxle F, on which the frame A rests. .Y

The plates E have each a hole made in them 'at the rear of the axle F,through which pins o?, :it the outer ends of levers G, pas-s, -saidlevers being secured by fulcrumpins e tothe rear side of the axle, asshown clearly in iig. 2,. Y f

The inner ends of these levers are connected to the end of the lower armof a bent lever, H, the fulcrumpinf of which passes into theaxle F, thelongerarm of said lever extending upward,` as shownin figs, 1 and 2,

The circular plates D D have holes made in them to receive the pins d ofthel'evers G, which pins pass through the holes of the tired platos E. g

The holes in the plates are made at such points as to secure the wheelsC C in a position at right angles with the axle F, or paralleltherewith. The latter position is shown in iig; 2, and when the wheelsare in this position the whole y'device may be moved laterally with thegreatest facility, and the saw B consequently moved over the log I,after each cut of the saw, a dis-tance equal to the lengths rof thepieces into which the log is to be sawed.

The wheels also,- when placed in this'position, hold the device firmly,or prevent it from vibrating or moving in a. longitudinal directionunder the actionoi' the saw.

i In order to adjust the wheels in either of the positions specified,all that is necessary. is Ato move the lever II, which Vactuates thelevers G and raises the pins d out from the holes infthe circularplates`D E, and after the wheels are adjusted inthe desired position,the pins cl are pressed down Athrough the holes in said plates byactuating thelevcr H. i

Ou the front part of the frame A there is secured transversely a ,metalbar, J, the central part of, which is bent upward in'inverted Vfform, orhas'a slotted inverted V-projection attached to it, and to thisprojection a metal guide-plate'or socket, fx, is' attached, which may besimply a plate doubled, the space between being suiiciently wide toreceive the saw when the outer side of the same is raised. This socketjhas a spring-catch,

K, attached to it,.'and this catch may be constructed of a wire or rod,coiled in spiral form at its upper-part to form a. spring, g, the lowerend of said nfjre or rod being bent in a horizontal position to passthrough holes in the lower'part of the -socketfX, and hold up the outerend'of the saw when the same is raised above the log, (see iig. 3.) p yBy this simple means the saw` may be retained in an elevated positionwhen the machine is being drawn from place to place, or'when the log orthe machine is being adjusted for a succeeding eut.

Having thusdescribed my invention, I claim `as new, and. desire tosecure by Letters Patent- Moving a sawing-machine in the mannerdescribed by Inca-ns of the wheels C C attached to the axle F,substantially asand for the purpose specified. I i

I further claim the' socketf, attached vtothe cross-bar J on the frontpart of the frame A, and provided with tbe-catch K, substantially asandforfthe purposes specified. l l

The abovetspec'ification of my invention signed by rnc, this thirdday'of June, 1867.

JAMES afLoeAN.

Witnesses A. DEMPEWOLF, GEORG GOETTELMAN.

